Unit 5 Educational exchanges-Grammar 课件（共25张PPT）

(共25张PPT)
英语教学课件系列
八年级上册
Grammar
教学内容：P71-73
Unit 5 Educational exchanges
1. 我已经学习了如何使用 筷子.
2. 我已经学了一点太极.
3.我们已经学了很多关于中国文化和历史的知识.
4. 到目前为止,它已经是一场很好的经历
I’ve learnt to use chopsticks.
I’ve learnt a bit of t’ai chi.
We’ve already learnt a lot about
Chinese culture and history.
It’s been a fantastic experience
so far.
I’ve learnt to use chopsticks.
I’ve learnt a bit of t’ai chi
We’ve already learnt a lot about
Chinese culture and history.
4. It’s been a fantastic experience
so far.
The present perfect tense
1. 定义：
现在完成时表示过去发生的动作对现在造成的影响或结果。
现在完成时表示过去某时刻开始持续到现在的动作或情况。
She has made a lot of friends.
1）肯定句：have/has +v. 过去分词
She hasn’t made a lot of friends.
2）否定句：
主语+ has/have +not+ v.过去分词+其他.
2.句式结构：
3）一般疑问句及肯否定回答：
---Has she made a lot of friends
---Yes, she has./No, she hasn’t.
-Has/Have +主语+ v.过去分词+其他
-Yes, 主语+has/have.
- No, 主语+hasn’t/haven’t.
4）特殊疑问句
How many friends has she made
特殊疑问词+has/have +主语+ v.过去分词+其他
2.句式结构：
I’ve learnt to use chopsticks.
I’ve learnt a bit of t’ai chi
We’ve learnt a lot about
Chinese culture and history.
4. It’s been a fantastic experience
so far.
I’ve learnt to use chopsticks.
I’ve not learnt to use chopsticks.
Have you learnt to use chopsticks
Yes, I have.
No, I have not.
I’ve learnt a bit of t’ai chi.
2. I’ve not learnt a bit of t’aichi.
Have you learnt a bit of t’aichi
Yes, I have.
No, I have not.
3. We’ve not learnt a lot about
Chinese culture and history.
Have you learnt a lot about
Chinese culture and history
Yes, I have.
No, I have not.
4. It’s not been a fantastic experience
so far.
Has it been a fantastic experience
so far
Yes, it has.
No, it has not.
3. 动词过去分词变化规则：
规则动词的过去分词与过去式的
变化规则基本一致：
1) 一般在词尾直接加-ed。eg: look-looked
2) 以e结尾的，直接加-d。eg: move-moved
3) 以“辅音字母+y”结尾的，变y为i，
再加-ed。 eg: carry-carried
4) 重读闭音节单词需双写末尾辅音字母，
再加-ed。 eg: stop-stopped
不规则动词的变化没有规律，则要单独记忆。
see-saw-seen be-was, were-been
eat-ate-eaten break-broke-broken
go-went-gone take-took-taken
send-sent-sent find-found-found
make-made-made have-had-had
have met
have played
has cooked
have studied
have seen
haven’t visited
haven’t done
Complete the e-mail with the present perfect tense
of the verbs in brackets.
4. 现在完成时的时间状语：
现在完成时的常见的时间状语有：for, since, so far, by
now, ever, never, just, yet, in the past…years等。
already＆yet
already意为“已经”，常用于肯定句；yet意为“还；已经”，常用于否定句和疑问句。
eg：I have ______ finished my homework.
Their parents haven’t come back _____.
already
yet
2) ever＆never
ever意为“曾经”，never意为“从不”。常用于have/has
之后，实义动词之前。
eg: Have you _____ been to Beijing
She has _____ seen a panda.
3) for＆since
For意为“经历（一段时间）”，后跟段时间；since意
为“自从……以来”，后跟时间点。
eg：I haven’t seen him ______ last month.
The football match has been on ______ half an hour.
We have learned a lot ______ we came to the school.
ever
never
since
for
since
5. 常用表达：
have been to 去过某地
have been in 待在某地
have gone to 去了某地
1) – _____ you ______ England –No, never.
2) He came to Shenzhen in 1994. He _____________
Shen-zhen since 1994.
3) –How long _____ they _______ Beijing
–For one month.
4) She isn’t there. She __________ the shop. She
____________ the shop for two hours.
选择合适的词组，补全句子。
Have been to
has been in
have been in
has gone to
has been in
Production
Ask and answer in pairs. Follow the example.
Sarah wants to know
whether the students from Beijing
have visited any places in
London before.
Ask and answer in pairs. Follow the example.
Later Sarah is asking
the students from Beijing about
what they have and
have not done in London.
1. 他已经找到他的自行车了。
_________________________________
2. 你曾经去过北京吗？
_________________________________
3. 他们还没有动身。
_________________________________
4. 你曾唱过这首英文歌吗？
_________________________________
5. 我们从来没有听说过这件事。
_________________________________
6. 我已经做完家庭作业了。
_________________________________
一、汉译英。
He has already found his bicycle.
Have you ever been to Beijing
They haven’t started yet．
Have you ever sung this English song
We have never heard of it．
I have already finished my homework．
1. Have you watched the film (作否定回答)
____, ___ _______.
2. Simon has decided to go to the meeting.
(改为一般疑问句)
___ Simon ______ __ go to the meeting
3. She’s already finished her homework. (改为否定句)
She ______ _______ her homework ___.
4. I have met Jill and Jim. (对划线部分提问)
_____ _____ ____ met
5. They have visited the Summer Palace and the Great Wall.
(对划线部分提问)
_____ _____ they ______
No I haven’t
Has decided to
hasn’t finished yet
二、按要求改写下列句子。
Who have you
What have visited
中考真题实战篇
It's easy if you try.
一、选择题
1.(2015.广州）Miss Brown,we_______cleaning our classroom. Can we go home now
A. finish B.finishing
C.are finished D.have finished
2.（2019.安徽） ----It’s ten years since we came here.
----How time flies!We ______in China for so long.
A. work B.worked
C.will work D.have worked
3.（2019.湖北）He ______his English teacher when he was sightseeing in Paris.
A. has met B.had met
C.met D.would meet
4.（2019.湖北） ---Have you________chemistry for the coming exam
----Yes.I'm quite ready for it.
A. repeated B.copied C.marked D.reviewed
5.(2019.贵州）----How many letters _____you ___to your mother
----109 in all,since 2016.
A. has; written B.have ;written
C.did ;write D.are;writing
6 .(2019.江苏） ---Is everyone here,Jonathan
---No,sir.Millie is absent. She _______for two days.
A. has fallen ill B.has been ill
C.fell ill D.was ill
7.(2019.四川） ----How long have you _____your cap It looks cool.
-----About two weeks.
A.borrowed B.bought C.had
8.(2019.北京） Our school life ___________a lot since 2017.
We have more activities now.
A.changes B.changed
C.will change D.has changed
Homework
1. 复习并熟记该部分语法点。
2. 完成本单元《语法同步练习》。
Thank you!